The core of Inter-Tel’s business revolves around supporting our valued customers. Find out more. With a maximum 1 hour response time, 24 hours-a-day, 7 days-a-week, 365 days-a-year, our customers can rest assured that we are always there to support them should trouble surface.

Inter-Tel Japan supports a wide variety of programs to ensure that all youth have the skills and training they need to successfully make the transition to adulthood and careers. Find out more about our programs.

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Inter-Tel consistently offers products designed for mobility and performance power. Our products are designed and built based upon feedback from our valued customers. Our research and development focuses on dynamic technologies, often enhancing other manufacturer’s products or technologies.

Through its intuitive and pleasing interface, our SIP terminals deliver fully-featured, cost-effective voice and data communications. Inter-Tel defines the standard for low ownership costs through our energy-saving technologies, and we help preserve our precious resources through the use of recyclable and reground plastics.